Fuel-supporting means



Dec. 8,1925. 1,564,396

N. J. ZUZULIN FUEL SUPPORTING mums} '5 Filed Jan. 16. 1925 FIG 3.

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m NlcHoLAs J. ZuzuLm,

Patented Dec. 8, 1925. if

Ulti'ltilt) STATES PATENT QFFICE.

NICHOLAS J. ZUZULIN, OF MINOT, NORTH DAKOTA.

FUEL-SUPPORTING MEANS.

Application filed January 16, 1925.

provide supporting means of the above mentioned character which will also aid in the combustion of the coal.

A further object of the invention is to provide means of the above mentioned character, which will permit of the usual rocking operation of the grate bars, for shaking the coal.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a central vertical section through a fire box of a furnace, showing my invention applied therein,

Figure 2 is a horizontal section taken on line 29. of Figure 1,

Figure 3 is a plan view of one of the rolling supports,

Figure 4 is a horizontal section taken on line an of Figure 3, and,

Figure 5 is a perspective view of one of the co-acting rolling supports.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral designates the fire box of a furnace of any well known or preferred construction, em-

bodying grates 11, and an ash pan 12, as

shown. a

My supporting means embodies rolling supporting elements 13 and 14:, which. are

extending diametrically thereof.

Serial No. 2,883.

formed of metal, such as iron. These elements are spherically shaped, and the elements 13 are preferably of larger diameter than the elements 14:. These supporting elements are distributed upon the upper surface of the grate bars to substantially completely cover the same and it is preferred that they be arranged generally alternately, but of course the arrangement is varied, due to the shifting action of the grate bars.

Each spherically curved element 13 is provided with ports 15, extending diametrically therethrough. These ports are arranged at a right angle to each other.

Each element 14 embodies a cylindrical disk 16. This diskcarries upon one side a curved segment 17 integral therewith, and On the opposite side the disk 16 carries a curved segment 18, integral therewith and extend ing diametrically thereof. The segments 17 4 and 18 are arranged at a right angle to each other. ,It is obvious that the segments 17 and 18 form with the disk 16, large segmental recesses 19, as shown.

In operation, these rolling supporting elements 18 and 14: are carried by the grate bars, as shown in Figures 1 and 2, and the coal is fed upon the top of the same. Air passages are provided between, about, and through these supporting elements, which provide a uniform supply of air to the coal, for itsproper combustion. lVhen the grates are shaken, the elements are agitated, and the proper shaking of the coal occurs.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts, may be resorted to without departing from the spirit of my invention or the scope of the subjoined claims.

Having thus described my invention, I claim:

1. The combination with a furnace embodying a fire box and its grate, of separate rolling fuel supporting elements arranged upon the grate, each element embodying a fiat disk and a. pair of segments secured to the opposite sides of the disk, affording segmental passages.

2. The combination with a furnace enibodying a fire box and its grate, of separate rolling fuel supporting elements arranged upon the grate, each element embodying it flat disk and a, pair of segments secured to the opposite sides of the disk, said segments extending in opposite directions and being disposed at substantially a right angle to each other, and forming with the disk relatively large air passages.

In testimony whereof I zitlix my signature.

NICHOLAS J. Z'UZULIN. 

